Oops, screwed into our black tank.

[Phoedis]

While screwing down our new floors, we screwed into our black tank about 1/4". Not a through and through but want to do a plastic weld to prevent it getting any worse but need to know what type of plastic the tank is made of. Anyone out there know? We have a 1992 Excella. Thanks!

[Belegedhel]

Is the plastic black, or white? If black, it is probably ABS. If White, probably HDPE.

good luck!

[markdoane]

My tank is black HDPE. Try using a soldering iron or heat gun. If it's HDPE you can just smoosh the hole closed.
If ABS you can just solvent glue a patch on.

[AKmtnpilot]

3M5200. Purchase at Lowes. Expensive but water won't bother it and won't come off. boatbuilders use it all the time

[ROBERT CROSS]

^
X2
Great addition to the AS tool kit. Many uses.
I just used it this morning to insulate a wiring repair on my e-bike battery. 👍

Bob
🇺🇸

[Phoedis]

Thanks for all the tips. We found someone who does plastic welding who is coming out today to fill and weld the hole.

[whbrown]

That's the best way. Not much sticks to HDPE.

[Phoedis]

So you are seeing double posts on this topic. My husband posted as well. One hand not telling the other what we've done and here we are. Thanks again everyone!

[Boxite]

Clean the area with electronic cleaner aerosol and let it dry...then patch with JB Weld. Permanent fix.

[Crackerman]

Stainless #10 screw with a dab of sikaflex 221. Good for many years